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Article #17470: Why Delphi drawing functions draw one pixel short.

 Question and Answer Database

FAQ2470D.txt   Why Delphi drawing functions draw one pixel short.
Category   :VCL
Platform    :All
Product    :All 32 bit  

Question:
Why do line drawing methods like MoveTo and LineTo always
draw a pixel short?


Answer:
This is the way most graphics systems work, including Windows.
The VCL simply maps calls to the GDI functions. If you need a 
given line to go all the way to the last coordinate, then 
simply add one pixel.

7/16/98 4:31:28 PM
 

Last Modified: 01-SEP-99